Improvement in thrashing-machines



UNITED STATES PATENT mu es,

IMPROVEMENT IN THRASHlNG-MACHINES.

Specification forming part of Letters Patent No. 48,047, dated June 6,1865.

Tn all whom it may concern:

Be it known that we, 0. B. BROWN and WILLIAM T. BROWN, of Alton, in thecounty of Madison and State of Illinois, have invented a new and usefulImprovement in Thrashing Machines; and we do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable those skilled in the art to make and use the same, referencebeing had to the accompanying drawings, forming part of thisspecification, in which- Figure 1 is a side view of our invention; Fig.2, a plan or top view of the same.

Similar letters of'reference indicate like improvement in theconstruction of thrashingmachines, whereby the same are greatlysimplified and rendered capable of being constructed' at a much lesscost than hitherto, and the machine nearly balanced on its wheels inorder to facilitate theoperation and the transportation of the same.

The invention consists, substantially, in a novel manner of constructingthe framing of the machine, which consists of two parallel pieces oftimber of sufficient depth to form the sides of the machine, therebydispensing with the usual planking on the inside of the frame, saidtimbers extending the whole length of the machine and being ofsufficient strength to support all the working parts thereof.

A A represent two parallel beams, which extend the whole length of themachine, and are fitted upon an axle, B, which is a short distance infront of the center of said beams, said axle having a wheel, 0, at eachend of it.

D is the thrashing-cylinder, the shaft a of which has its bearings onthe beams AA, near one end of the same, said cylinder being over aconcave of the usual construction, which is fitted between the beams AA.

E is an endless apron which works over rollers between the beams A A,said apron having slats b attached transversely to it, as usual. v

F is a top board attached to the upper surfaces of the beams A A, andthe latter have bottom plates or boards, 0, attached to them. The screenor shoe is hung in a box, G, attached to the under sides of the beams AA, said box having a blast-fan, H, fitted in behind the shoe. Theworking parts of the machine possess no novel features, they are thesame as those now used; but it will be seen from the above descriptionthat they are all supported by the beams A A, and that no extra sidingor planking is required. Besides this, theframe is nearly balanced onthe wheels 0 G, and theimplement or device may be readily moved fromplace to place, and also readily adjusted for operation-a very importantfeature, as it effects a great saving in labor and admits of its beingadjusted for use in positions where the ordinary machines cannot beconveniently placed.

\Ve do not claim separately any of the working parts of thethrashing-machine herein shown and described, for they are all old andin common use; but

WVe claim as new and desire to secure by Letters Patent-- Athrashing-machine mounted upon two wheels and constructed and arrangedas herein described, so that the operators can stand on the-ground,dispensing with the use of a platform.

G. B. BROWVN.

WVILLIAM T. BROWVN.

Witnesses:

J AMES PATTERSON, GILBERT DUNCAN.

